Improvement in chain-pump buckets



EDWIN HOYT, OF STAMFORD, CONNECTICUT.

IMPRQVEMENT IN CHAIN-PUMP BUCKETS.

Specification forming part o f Letters Patent No. 163,013, dated May 1171.875; application filed March 29, 1875.

To all whom it may concern:

Be it known that I, EDWIN Horfr, ot' Sta-n1- ford, in the county ot'Fairfield and State ot Connecticut, have invented certain new and usefulImprovements in Buckets for Chain- Puinps 5 and do hereby declare thatthe following is affull, clear, and exact description thereof, whichwill enable others skilled in the art to which it pertains to make anduse the same, reference being had to the accompanying drawing, and tothe letters of reference marked thereon, which form a part of thisspecication.

My invention relates to improvements in chain-pumps, in which rubberbuckets are employed; and it consists in the construction of the links,whereby the buckets may be more readily retained in their properposition, and in the construction and formation of the buckets.

In the drawings, Figure l is a plan view,

Fig. 2 a horizontal section, Fig. 3 avertical section, ot' one of myimproved buckets 5 and Fig. 4 is a vertical section ot' a bucket appliedto a link. -f

a is the bucket, made of indiarubber. It is formed with acentral hub,al, around which is formed a ange or rim, a2, having annularindentations a3 on the upper and under sides thereof, thereby giving thesame form to both sides of the bucket, so that it is immaterial whichside is placed uppermost in the pump. These annular indentations a3increase the lifting capacity of the bucket, and, Without Wea-kening thelatter, give a exibility to the rim or flan ge. In the periphery of therim is formed a V- shaped recess, b. This recess admits air from anupper to a lower bucket, so that when the pumping is stopped the waterin the pump will fall immediately to the bottom. It also admits of thecompression and expansion-of the rim in the direction of thecircumference, when necessary on account of any slight variation'ot' thesize or" the tube in which it is used, and thus prevents an unequalWearing away of the bucket. c is the link, constructed with the eyes c,at each end, for receiving connecting-links to form the chain. In thecenter ot' the link is formed a flange, e, which is adapted to bereceived within a recess, el, formed in the center of the hub al of thebucket. Recesses e2 are formed on opposite sides ofthe ange e, which areadapted to receive corresponding projections c3 formed on the interiorofthe recess e1, for the purpose of preventing the revolution or turningof the bucket on the link.

The link o having been formed as described and shown, the bucket .isformed thereon by suit-able molds, the material for the bucket being ina plastic form when first applied. By this means ot' construction theparts will tit closely and securely together.

The bucket, after being formed on the link, can be, it' desired, sprungott' the link, and be again sprung on another.

It will be seen that my'improved buckets are reversible, so that when,by the action of their pressure exerted upon them, they become bent inone direction, they can be reversed and inverted. Y Having described myinvention, what I claim, and desire to secure by Letters Patent,

1. An india-rubber bucket, a, constructed with a central hub, al, havingthe recessl el, and provided with projections c3, adapted to be receivedwithin recesses on a link, and a flange, a2, provided with a V-shapedrecess, b, substantially as and for the purposes described.

2. A link, c, provided with eyes or loops c and a central iiange, e,formed with recesses e2 in its periphery, substantially as and for thepurposes set forth.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

EDWIN HOYT.

Witnesses:

ED. Woon BIKER, D. L. ScoFIELD.

